#include <stdio.h>

int main(int argc, char *argv[])
{
    long int n, sum = 0;

	printf("This program sums a series of integers.\n");
	printf("Enter integers (0 to terminate): ");
	scanf("%ld", &n);
	while (n != 0) {
		sum += n;
		scanf("%ld", &n);
	}

	printf("The sum is: %ld\n", sum);
	
    return 0;
}
